Perhaps you should try some spelling variations:
"instituto tecnologico nacionales" » "instituto tecnologicas regionales", "instituto tecnologias funcionales", "instituto oncologico nacional", "instituto oncologico nacionales", "instituto tecnico nacionales", "instituto pedagogico nacionales"
"instituto economico nacional" » "instituto oncologico nacional", "instituto tecnico nacional", "estimulo economico nacional", "instituto economia nacional", "instituto economico regional", "instituto astronomico nacional"
"instituto geologico nacional" » "instituto neurologico nacional", "instituto oncologico nacional", "instituto agroecologico nacional", "instituto geologico regional", "instituto pedagogico nacional"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"instituto economico nacional\") OR (((\"instituto geologico nacional\") OR (\"instituto tecnologico nacionales\"))))~".
• Removing quotes may allow a broader search: (( instituto economico nacional ) OR ((( instituto geologico nacional ) OR ( instituto tecnologico nacionales ))))~.
• Adding a wildcard symbol may retrieve word variants: (("instituto economico nacional") OR ((("instituto geologico nacional") OR ("instituto tecnologico nacionales"))))*.